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    • 4. 发明授权
    • Methods for determining intracranial pressure non-invasively
    • 非侵入性确定颅内压的方法
    • US07547283B2
    • 2009-06-16
    • US10861197
    • 2004-06-03
    • Pierre D. MouradBrandt MohrMichel KliotRobert C. A. Frederickson
    • Pierre D. MouradBrandt MohrMichel KliotRobert C. A. Frederickson
    • A61B8/14
    • A61B5/031A61B5/0051A61B5/4064A61B5/415A61B5/418A61B5/4824A61B5/7267A61B8/00A61B8/04A61B8/065A61B8/08A61B8/0808A61B8/4236A61B8/4444A61B8/4472A61B8/4483A61B8/485A61B8/488
    • Systems and methods for determining ICP based on parameters that can be measured using non-invasive or minimally invasive techniques are provided, wherein a non-linear relationship is used to determine ICP based on one or more variable inputs. The first variable input relates to one or more properties of a cranial blood vessel and/or blood flow, such as acoustic backscatter from an acoustic transducer having a focus trained on a cranial blood vessel, flow velocity in a cranial blood vessel, and the like. Additional variables, such as arterial blood pressure (ABP), may be used in combination with a first variable input relating to one or more properties of a cranial blood vessel, such as flow velocity of the middle cerebral artery (MCA) to derive ICP using a non-linear relationship. Methods and systems for locating target areas based on their acoustic properties and for acoustic scanning of an area, identification of a target area of interest based on acoustic properties, and automated focusing of an acoustic source and/or detector on a desired target area are also provided. Acoustic transducer assemblies are described.
    • 提供了基于可以使用非侵入性或微创技术测量的参数来确定ICP的系统和方法,其中使用非线性关系来基于一个或多个可变输入来确定ICP。 第一可变输入涉及颅血管和/或血流的一种或多种性质,例如来自具有在颅血管上训练的焦点的声学换能器的声学后向散射,颅血管中的流速等 。 另外的变量,例如动脉血压(ABP)可以与与颅血管的一种或多种性质(例如大脑中动脉(MCA)的流速)相关的第一可变输入组合使用,以便使用 非线性关系。 基于它们的声学特性和对于区域的声学扫描来定位目标区域的方法和系统也基于声学特性识别目标区域,以及声源和/或检测器在期望的目标区域上的自动聚焦也是 提供。 描述了声学换能器组件。
    • 7. 发明授权
    • Systems and methods for making noninvasive physiological assessments
    • 进行无创生理评估的系统和方法
    • US06875176B2
    • 2005-04-05
    • US09995897
    • 2001-11-28
    • Pierre D. MouradMichel KliotAli MesiwalaRex PattersonJeffrey G. Jarvik
    • Pierre D. MouradMichel KliotAli MesiwalaRex PattersonJeffrey G. Jarvik
    • A61B8/08A61B5/03A61B8/00A61B8/04A61B8/12
    • A61B5/415A61B5/0048A61B5/031A61B5/4058A61B5/4064A61B5/418A61B5/4824A61B8/00A61B8/04A61B8/08A61B8/0816A61B8/485A61B8/488
    • Systems and methods for assessment of tissue properties, noninvasively, by acquiring data relating to at least one aspect of intrinsic and/or induced tissue displacement, or associated biological responses, are provided. Data relating to tissue displacement and associated biological changes may be acquired by detecting acoustic properties of tissue using ultrasound interrogation pulses, preferably in a scatter or Doppler detection mode. Based on this data, tissue properties are assessed, characterized and monitored. Specific applications for systems and methods of the present invention include non-invasive assessment and monitoring of intracranial pressure (ICP), arterial blood pressure (ABP), CNS autoregulation status, vasospasm, stroke, local edema, infection and vasculitus, as well as diagnosis and monitoring of diseases and conditions that are characterized by physical changes in tissue properties. Methods and systems for localizing physiological condition(s) and/or biological response(s), such as pain, by targeting and selectively probing tissues using the application of focused ultrasound are also provided.
    • 提供了通过获取与内在和/或诱导的组织置换或相关生物反应的至少一个方面相关的数据来无组织地评估组织特性的系统和方法。 可以通过使用超声询问脉冲检测组织的声学特性,优选地以散射或多普勒检测模式来获取与组织位移和相关联的生物变化有关的数据。 基于该数据,对组织性质进行评估,表征和监测。 本发明的系统和方法的具体应用包括颅内压(ICP),动脉血压(ABP),CNS自动调节状态,血管痉挛,中风,局部水肿,感染和血管炎的非侵入性评估和监测以及诊断 并监测组织特性物理变化特征的疾病和病症。 还提供了通过使用聚焦超声的应用来靶向和选择性探测组织来定位生理状况和/或生物反应(例如疼痛)的方法和系统。